Rosa plant named &#39;QIR 1621&#39;

ABSTRACT

A new and distinct cultivar of Rose plant named ‘QIR 1621’, characterized by its upright and mounding plant habit; strong lateral branches; dark green-colored leaflets; large light pink-colored flowers; flowers held upright on strong and erect peduncles; and good postproduction longevity.

Botanical designation: Rosa hybrida.

Cultivar denomination: ‘QIR 1621’.

BACKGROUND OF THE INVENTION

The present Invention relates to a new and distinct cultivar of Rose or Rosa plant, botanically known as Rosa hybrida, commercially used as a potted Rose plant and hereinafter referred to by the name ‘QIR 1621’.

The new Rose plant is a product of a planned breeding program conducted by the Inventor in Odense, Denmark. The objective of the breeding program was to develop new uniform and healthy potted Rose varieties with attractive flower colors and excellent postproduction longevity.

The new Rose plant originated from an open-pollination in March, 2013 of Rosa hybrida ‘Lys Red Klase’, not patented, as the female, or seed, parent with a unknown proprietary selection of Rosa hybrida as the male, or pollen, parent. The new Rose plant was discovered and selected by the Inventor on May 19, 2014 as a single flowering plant within the progeny of the stated cross-pollination in a controlled greenhouse environment in Odense, Denmark.

Asexual reproduction of the new Rose plant by cuttings in a controlled greenhouse environment in Odense, Denmark since May, 2014 has shown that the unique features of this new Rose plant are stable and reproduced true to type in successive generations of asexual reproduction.

SUMMARY OF THE INVENTION

The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘QIR 1621’. These characteristics in combination distinguish ‘QIR 1621’ as a new and distinct Rose plant:

-   -   1. Upright and mounding plant habit.     -   2. Strong lateral branches.     -   3. Dark green-colored leaflets.     -   4. Large light pink-colored flowers.     -   5. Flowers held upright on strong and erect peduncles.     -   6. Good postproduction longevity.

Plants of the new Rose differ from plants of the female parent, ‘Lys Red Klase’, primarily in plant habit as plants of the new Rose are more compact and have stronger stems than plants of ‘Lys Red Klase’. In addition, flowers of plants of the new Rose are more intense pink in color than flowers of plants of ‘Lys Red Klase’.

Plants of the new Rose can be compared to plants of the Rose ‘QIR 1631’, disclosed in a U.S. Plant patent application filed concurrently. In side-by-side comparisons, plants of the new Rose differ primarily from plants of ‘QIR 1631’ in flower color as plants of ‘QIR 1631’ have bright red purple-colored flowers.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying colored photographs illustrate the overall appearance of the new Rose plant showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photographs may differ slightly from the color values cited in the detailed botanical description which accurately describe the colors of the new Rose plant.

The photograph on the first sheet comprises a side perspective view of a typical plant of ‘QIR 1621’ grown in a container.

The photograph on the second sheet is a close-up view of a typical open flower of ‘QIR 1621’.

The photograph at the top of the third sheet is a close-up view of the upper and lower surfaces of typical flowers of ‘QIR 1621’.

The photograph at the bottom of the third sheet is a close-up view of the upper and lower surfaces of typical leaves of ‘QIR 1621’.

DETAILED BOTANICAL DESCRIPTION

Plants of the new Rose have not been observed under all possible combinations of environmental conditions and cultural practices. The phenotype may vary somewhat with variations in environmental conditions such as temperature and light intensity, without, however, any variance in genotype. The aforementioned photographs, following observations and measurements describe plants grown during the autumn in a glass-covered greenhouse in Odense, Denmark and under cultural practices typical of commercial potted Rose production. Plants were grown in 13-cm containers, pinched one time and were three months old when the photographs and description were taken. During the production of the plants, day and night temperatures averaged 21° C. and light levels ranged from 60 to 100 klux. In the following description, color references are made to The Royal Horticultural Society Colour Chart, 2001 Edition, except where general terms of ordinary dictionary significance are used.

-   Botanical classification: Rosa hybrida ‘QIR 1621’. -   Parentage:     -   -   Female, or seed, parent.—Rosa hybrida ‘Lys Red Klase’, not             patented.         -   Male, or pollen, parent.—Unknown proprietary selection of             Rosa hybrida, not patented. -   Propagation:     -   -   Type.—By cuttings.         -   Time to produce a rooted young plant, summer.—About 24 days             at soil temperatures about 23° C.         -   Time to produce a rooted young plant, winter.—About 24 days             at soil temperatures about 21° C.         -   Root description.—Fibrous, fine; close to 158B in color.         -   Rooting habit.—Freely branching; medium density. -   Plant description:     -   -   Plant and growth habit.—Upright and mounding plant habit;             moderately vigorous growth habit; freely branching habit,             pinching enhances lateral branch development; dense and             bushy appearance.         -   Plant height.—About 25 cm to 30 cm.         -   Plant width (spread).—About 20 cm to 25 cm.         -   Lateral branches.—Length: About 12 cm to 18 cm. Diameter:             About 3 mm to 5 mm. Internode length: About 1 cm to 3 cm.             Strength: Strong. Texture: Smooth, glabrous. Color: Close to             137B. Thorns: Density: About five to eight per linear             centimeter. Shape: Acicular with subulate apices. Height:             About 2 mm to 5 mm. Diameter, at base: About 1 mm to 2 mm.             Color, immature: Close to 194A. Color, mature: Close to             195B. -   Leaf description:     -   -   Arrangement.—Alternate; compound with three or five leaflets             per leaf.         -   Leaf length.—About 6 cm to 8 cm.         -   Leaf width.—About 5 cm to 6 cm.         -   Terminal leaflet length.—About 4 cm to 5 cm.         -   Terminal leaflet width.—About 2.5 cm to 3.5 cm.         -   Lateral leaflet length.—About 2.5 cm to 3 cm.         -   Lateral leaflet width.—About 1.5 cm to 2.5 cm.         -   Leaflet shape.—Ovate.         -   Leaflet apex.—Acute.         -   Leaflet base.—Obtuse.         -   Leaflet margin.—Serrate.         -   Leaflet texture, upper and lower surfaces.—Smooth, glabrous;             somewhat leathery.         -   Leaflet venation pattern.—Pinnate; reticulate.         -   Leaflet color.—Developing leaflets, upper surface: Close to             146A. Developing leaflets, lower surface: Close to 197A.             Fully developed, upper surface: Close to N189A; venation,             close to 189A. Fully developed, lower surface: Close to             191A; venation, close to 137A.         -   Petioles.—Leaf petiole length: About 1.5 cm to 2 cm. Leaf             petiole diameter: About 1 mm to 3 mm. Leaflet petiole             length: Less than 1 mm to 1 mm. Leaflet petiole diameter:             Less than 1 mm to 1 mm. Leaf petiole texture, upper and             lower surfaces: Smooth, glabrous. Leaflet petiole texture,             upper and lower surfaces: Smooth, glabrous. Leaf petiole             color: Upper surface: Close to 137A. Lower surface: Close to             138A. Leaflet petiole color: Upper surface: Close to 137A.             Lower surface: Close to 138B.         -   Leaf stipules.—Quantity: Two per leaf. Length: About 5 mm to             15 mm. Width: About 1 mm to 2 mm. Shape: Subulate. Apex:             Acuminate. Base: Truncate; sessile. Margin: Dentate.             Texture, upper and lower surfaces: Smooth, glabrous. Color,             upper surface: Close to 137A. Color, lower surface: Close to             137B. -   Flower description:     -   -   Flower type and habit.—Large double flowers with numerous             petaloids; consistently symmetrical rosette flowers; flowers             borne on strong and erect peduncles with one terminal flower             per lateral branch; flowers face upright.         -   Flowering season.—Year-round under greenhouse conditions,             optimal flowering from spring through autumn under garden             conditions; plants begin flowering about five to seven weeks             after planting.         -   Post-production longevity.—Good postproduction longevity,             plants maintain good substance for about seven to nine             weeks; flowers persistent.         -   Fragrance.—None detected.         -   Flower diameter.—About 4 cm to 5.5 cm.         -   Flower depth (height).—About 2 cm to 3 cm.         -   Flower buds.—Length: About 1.5 cm to 2 cm. Diameter: About 1             cm to 1.5 cm. Shape: Ovoid. Color: Close to 58C.         -   Petals.—Quantity: About four to six in a single whorl;             petals imbricate. Length: About 2 cm to 2.5 cm. Width: About             2.5 cm to 3 cm. Shape: Obovate. Apex: Praemorse. Base:             Attenuate. Margin: Entire. Texture, upper and lower             surfaces: Smooth, glabrous; velvety. Color: When opening,             upper surface: Close to 61D and 62A; towards the center,             close to 157A. When opening, lower surface: Close to 61D and             62A; towards the center, close to 144D. Fully opened, upper             surface: Close to 65A; towards the center, close to 157A;             with development, color becoming closer to 65C and N66C and             towards the center, close to 157C. Fully opened, lower             surface: Close to 65B; towards the center, close to 142C.         -   Petaloids.—Quantity: About 50 to 100 arranged in numerous             whorls; petaloids imbricate. Length: About 2 cm to 2.5 cm.             Width: About 1.5 cm to 2 cm. Shape: Obovate. Apex:             Praemorse. Base: Attenuate. Margin: Entire. Texture, upper             and lower surfaces: Smooth, glabrous; velvety. Color: When             opening, upper and lower surfaces: Close to 65A. Fully             opened, upper and lower surfaces: Close to 65B.         -   Sepals.—Quantity and arrangement: Typically five in a single             star-shaped whorl. Length: About 1.5 cm to 2 cm. Width:             About 5 mm. Shape: Lanceolate. Apex: Acuminate. Base:             Obtuse. Margin: Serrate; ciliate. Texture, upper and lower             surfaces: Fine pubescence. Color: When opening, upper             surface: Close to 143C. When opening, lower surface: Close             to 148C. Fully opened, upper surface: Close to 144A. Fully             opened, lower surface: Close to 148C.         -   Peduncles.—Length: About 2 cm to 4 cm. Diameter: About 2 mm.             Strength: Strong. Aspect: Erect. Texture: Fine pubescence.             Color: Close to 144A.         -   Reproductive organs.—Stamens: Quantity per flower: About 80             to 100. Anther length: About 1 mm to 2 mm. Anther shape:             Cordate. Anther color: Close to 2B. Filament color: Close to             145C. Pollen amount: Scarce. Pollen color: Close to 2A.             Pistils: Quantity per flower: About 20 to 30. Pistil length:             About 6 mm to 10 mm. Stigma shape: Round. Stigma color:             Close to 163B. Style length: About 5 mm. Style color: Close             to 157A; distally, close to 63A. Receptacle height: About             5 mm. Receptacle diameter: About 5 mm to 10 mm. Receptacle             shape: Cup-shaped. Receptacle texture: Smooth, glabrous.             Receptacle color: Close to 138B. Fruits: Quantity per             flower: One. Length: About 1 cm to 2 cm. Diameter: About 1.2             cm to 2.2 cm. Texture: Smooth, glabrous. Color: Close to 42B             and 26A. Seeds: Quantity per fruit: About six to eight.             Length: About 3 mm to 5 mm. Diameter: About 2 mm to 4 mm.             Texture: Smooth, glabrous. Color: Close to 166B, 166C and             165C. -   Pathogen & pest resistance: Plants of the new Rose have not been     observed to be resistant to pathogens and pests common to Rose     plants. -   Temperature tolerance: Plants of the new Rose have been observed to     tolerate temperatures ranging from about 3° C. to about 35° C. to     40° C. 

It is claimed:
 1. A new and distinct Rose plant named ‘QIR 1621’ as illustrated and described. 